extent-n; 3 Senses

Sense Number 1: a span of land or territory

Commentary: EXTENT[+location][+geographical][+expanse] [+quantity][+magnitude][+distance]

The vast extent of the desert lay before them.
It's a pear orchard of considerable extent.
The king owns considerable extents of forest.
The extent of the AIDS infection now includes every continent. (implies a physical area)

WordNet 3.0 Sense Numbers: 2

Sense Number 2: the degree or amount of something

Commentary: EXTENT[+quantity][+measure][+degree]

They altered the document to such an extent that it contained little of the original idea.
The museum has not yet determined the extent of the damage done to their collection.
Her analysis of the situation is correct to some extent.
The children were taught to use their talents to the greatest extent possible.

WordNet 3.0 Sense Numbers: 1

Sense Number 3: the scope of influence or effect of something

Commentary: EXTENT[+state][+influence][+scope]
NOTE: implies an authority or intentional agent

These small mountain villages are largely beyond the extent of the government's control.
This case is outside the extent of her jurisdiction.
The extent of the empire's power stretched even beyond the eastern Mediterranean.

WordNet 0.0 Sense Numbers: 3a